nmig/src/ConstraintsProcessor.ts
2018-06-13 02:21:28 +03:00

92 lines
4 KiB
TypeScript

/*
* This file is a part of "NMIG" - the database migration tool.
*
* Copyright (C) 2016 - present, Anatoly Khaytovich <anatolyuss@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (please see the "LICENSE.md" file).
* If not, see <http://www.gnu.org/licenses/gpl.txt>.
*
* @author Anatoly Khaytovich <anatolyuss@gmail.com>
*/
import * as sequencesProcessor from './SequencesProcessor';
import * as dataPoolManager from './DataPoolManager';
import runVacuumFullAndAnalyze from './VacuumProcessor';
import * as migrationStateManager from './MigrationStateManager';
import generateReport from './ReportGenerator';
import processEnum from './EnumProcessor';
import processNull from './NullProcessor';
import processDefault from './DefaultProcessor';
import processIndexAndKey from './IndexAndKeyProcessor';
import processComments from './CommentsProcessor';
import processForeignKey from './ForeignKeyProcessor';
import processViews from './ViewGenerator';
import { dropDataChunkIdColumn } from './ConsistencyEnforcer';
import Conversion from './Conversion';
/**
* Continues migration process after data loading, when migrate_only_data is true.
*/
async function continueProcessAfterDataLoadingShort(conversion: Conversion): Promise<void> {
const promises: Promise<void>[] = conversion._tablesToMigrate.map(async (tableName: string) => {
await dropDataChunkIdColumn(conversion, tableName);
return sequencesProcessor.setSequenceValue(conversion, tableName);
});
await Promise.all(promises);
await dataPoolManager.dropDataPoolTable(conversion);
await runVacuumFullAndAnalyze(conversion);
await migrationStateManager.dropStateLogsTable(conversion);
generateReport(conversion, 'NMIG migration is accomplished.');
}
/**
* Continues migration process after data loading, when migrate_only_data is false.
*/
async function continueProcessAfterDataLoadingLong(conversion: Conversion): Promise<void> {
const isTableConstraintsLoaded: boolean = await migrationStateManager.get(conversion, 'per_table_constraints_loaded');
const promises: Promise<void>[] = conversion._tablesToMigrate.map(async (tableName: string) => {
if (!isTableConstraintsLoaded) {
await dropDataChunkIdColumn(conversion, tableName);
await processEnum(conversion, tableName);
await processNull(conversion, tableName);
await processDefault(conversion, tableName);
await sequencesProcessor.createSequence(conversion, tableName);
await processIndexAndKey(conversion, tableName);
await processComments(conversion, tableName);
}
});
await Promise.all(promises);
await migrationStateManager.set(conversion, 'per_table_constraints_loaded');
await processForeignKey(conversion);
await migrationStateManager.set(conversion, 'foreign_keys_loaded');
await dataPoolManager.dropDataPoolTable(conversion);
await processViews(conversion);
await migrationStateManager.set(conversion, 'views_loaded');
await runVacuumFullAndAnalyze(conversion);
await migrationStateManager.dropStateLogsTable(conversion);
generateReport(conversion, 'NMIG migration is accomplished.');
}
/**
* Continues migration process after data loading.
*/
export default async function(conversion: Conversion): Promise<void> {
if (conversion._migrateOnlyData) {
await continueProcessAfterDataLoadingShort(conversion);
return;
}
await continueProcessAfterDataLoadingLong(conversion);
}